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Excerpt |
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Solr in DSpace
What is Solr: http://lucene.apache.org/solr/features.html
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Warning |
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Before you try to follow the advice below to bypass the localhost restriction, please note:
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Bypassing localhost restriction temporarily
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Starting from DSpace 3, there is a statistics_type
field in the statistics
core that contains the "usage event type". Currently, the available types are search
, view
, search_result
and workflow
. Here's how to get event breakdown by type, excluding robots (isBot:false
):
Code Block |
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http://localhost:8080/solr/statistics/select?indent=on&rows=0&facet=true&facet.field=statistics_type&q=isBot:false |
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Code Block |
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http://localhost:8080/solr/statistics/select?indent=on&rows=0&facet=true&facet.date=time&facet.date.start=2016-01-01T00:00:00Z&facet.date.end=2017-01-01T00:00:00Z&facet.date.gap=%2B1MONTH&q=type:0+owningItem:2163&fq=-isBot:true&fq=-(bundleName:[*+TO+*]-bundleName:ORIGINAL)&fq=-(statistics_type:[*+TO+*]+-statistics_type:view) |
Statistics: number of total downloads in a given time span
Show the total repository-wide bitstream (type:0
) downloads, excluding robots (isBot:false
), for a specific duration (September 1 2017 through September 1 2018). No need for faceting to get a total count:
Code Block |
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http://localhost:8080/solr/statistics/select?indent=on&rows=0&q=time:[2017-09-01T00:00:00Z+TO+2018-09-01T00:00:00Z]+AND+type:0+AND+isBot:false |
Querying Solr from XMLUI
Since Solr returns its responses in XML, it's possible and easy to call custom Solr queries from XMLUI, process the XML response with XSLT and display the results in human-readable form on the HTML page.
There are two ways how to do that - synchronously in Cocoon or asynchronously using AJAX (JavaScript) after the page is loaded. Solr queries are usually very fast, so only synchronous calls will be shown here.
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- Discovery Official DSpace 3.x documentation
- DSpace Discovery Discovery proposal & purpose, intro video, Discovery 1.8 changes & configuration
- DSpace Discovery HowTo Discovery screenshots (before Discovery was included in DSpace), most content obsolete (pre-1.7.0)
See also:
- Solr Tutorial
- ajax-solr, a JavaScript library for creating user interfaces to Solr.
- /var/log/tomcat6/catalina.out